About the Authors

Sheila Dorsey Vinton

Affiliation Department of Anthropology, University of Kentucky, Lexington, Kentucky, United States of America

Linda Perry

Affiliation Archaeobiology Program, Department of Anthropology, Smithsonian National Museum of Natural History, Washington D.C., United States of America

Karl J. Reinhard

kreinhard1@mac.com

Affiliation School of Natural Resources, University of Nebraska – Lincoln, Lincoln, Nebraska, United States of America

Calogero M. Santoro

Affiliations Instituto Alta Investigación, Departamento de Antropología, Universidad de Tarapacá, Arica, Chile, Centro de Investigaciones del Hombre en el Desierto, Arica, Chile

Isabel Teixeira-Santos

Affiliation Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SDV LP KR CMS. Performed the experiments: SDV LP KR ITS. Analyzed the data: SDV KR ITS. Contributed reagents/materials/analysis tools: KR CMS. Wrote the paper: SDV LP KR CMS.